久久妞干网_久久久毛片视频_成人国产精品一区二区毛片在线,人人鲁人人莫一区二区三区,天堂岛av,国产精品九九九

對夾式-無靠背手柄蝶閥Wafer type-Non Back HandleButterfly Valve

型號Modle:220D7A1X通徑Diameter: DN25-DN200

壓力Pressure:PN1.0-PN1.6Mpa

適用介質Medium:淡水，海水，空氣，弱酸性、弱堿性液體，油，醇類等Freshwater,Seawater, Air, Weak acid.alkaline liquid, oil, alcohols etc

適用溫度Temperature:-20℃-140℃

閥體材質Body Material:球墨鑄鐵Ductile iron

閥板材質Disc Material:尼龍板，不銹鋼等Nylon plate,Stainless steelCF8,CF8M,CF3M etc